MCCOY UNIT A

Oil · District 02 · Lease #10847

Operator: MARATHON OIL EF LLC

Cum Oil

309k BBL

Cum Gas

1.1M MCF

casinghead

Wells

5

Production

2014-10 — 2026-01

Peak Month

2015-05

Production History

Cum Oil: 308,535 BBL Cum Gas: 1,110,799 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

18,668 BBL/mo

Di (annual)

108.3%

b-factor

0.4

EUR

341,806 BBL

R-squared

0.892

type

hyperbolic

Operator History (from monthly production reports)

2014-10 — 2026-07 MARATHON OIL EF LLC 142 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
501HMARATHON OIL EF LLC119,5002014-10-21
7HMARATHON OIL EF LLC219,3142013-01-22
6HMARATHON OIL EF LLC117,5002013-01-18
2HMARATHON OIL EF LLC119,9002012-07-16
3HMARATHON OIL EF LLC119,7002012-07-16